Yandere Geto X Reader - Blog Posts

Parasite

Sum: Nothing bad ever happens from a fling, right?

Yan!SatoSugu x Reader

TW: Yandere Behaviors, Pregnancy/Implied Baby trapping, Non-con/Dub-con, Double Penetration, Power imbalance, mild gore (curses), Execution mentions, MDNI

WC: 3.5k

A/n: there will be another part eventually! Mwah!

You knew this was wrong - every part of it. You shouldn’t be here, ensnared between the two most dangerous sorcerers alive. You shouldn’t be gasping sweet moans into the mouth of the enemy, pressed between their feverish, toned bodies. And yet, here you were, lips crushed against Satoru’s, desperation tangible as he chased every breath you tried to take. Hungry. Starved. Intent on devouring you whole. His long, slender fingers found their way to the curve of your waist, dragging the blunt edge of his nails along the softness of your skin. His lips followed, trailing down the column of your neck, branding you with searing heat. Behind you, Suguru pressed closer, his warmth a slow, creeping heat licking up your spine, airy touches ghosting down your body. That voice - silken and intoxicating - curled into your ear, pulling a sigh from your lips before you could stop it.

“I missed you,” he murmured, those thick fingers of his flexing against your tender, pliant flesh. Then, with a teasing lilt, he added, “And you know… I don’t think I’ll let you leave this time.”

The same joke. The same dangerous hint of a smile in his words. He used to say it back when you’d slip into his dorm in the dead of night, when stolen kisses in dim hallways felt like secrets worth keeping. But that was then.

You felt Suguru’s hands glide up from your hips, pulling you from your thoughts, his soothing touch tracing idle patterns into your skin. There was an almost languid hunger in the way he moved - a need to claim, to memorize every curve, every tremor that rippled through you under his touch. Big, warm calloused palms, rough from training, grazed over your flesh, scorching everywhere they touched. Higher and higher, teasingly slow, until they reached their destination, cupping your breasts, kneading softly before his thumb flicked over your sensitive nub, coaxing a gasp from your lips.

His mouth was just as sinful, hot and insistent. Lips latched onto the nape of your neck, sucking a bruising mark into your skin - one you’d surely chastise him for later. 

Yet, in this moment, all you could focus on was the way you were sinking onto Satoru. The thick stretch of him stole your breath. God, you’d forgotten how full he made you feel - almost too much, the urge to say wait nearly slipping from your lips. But you couldn’t stop - not with Suguru pressing in behind you, trapping you between them, the weight of what was at stake pressing just as heavily against your skin.

How long had it been since the three of you planned this? A month? Two? If the higher-ups ever found out -

“You’re overthinking again,” Satoru whined, his voice breathy with need. He gazed up at you, those bright, lust-hazed eyes brimming with impatience. His grip on your hips tightened before he yanked you down, forcing his length deeper inside you. A sharp moan tore from your throat, body trembling as pleasure jolted through you.

“Can feel you dryin’ up,” Satoru murmured, his voice dipping into something teasing yet edged with need. “C’mon, pretty - focus on us.”

Suguru seemed to notice as well, one hand slipping away, trailing down to the small of your back. With a firm, gentle nudge as he guided you forward until your body melted against Satoru’s warm chest. Hazy and pliant, you let your lips find his in a slow, heated kiss, too lost in him to register the shift behind you.

At first, you barely noticed the second press of a velvety tip at your entrance, too caught up in the way Satoru’s fingers tangled in your hair, keeping you tethered to him, deepening the kiss. But when Suguru pushed forward, sinking in inch by inch, Satoru stilled, smiling against your lips as if savoring your reaction.

The stretch was dizzying, a sharp gasp tearing from your throat - one that Satoru eagerly swallowed, his tongue licking into your mouth to steal the sound. Behind you, Suguru let out a low, satisfied hum, his grip tightening as he cooed,

“It’s just a big stretch, Angel. You can handle it.”

The sinful reassurance dripped from Suguru’s lips that only made the overwhelming sensation all the more dizzying. Sounds you’d never made before were quickly swallowed by Satoru, his soft, glossy lips moving hungrily against yours as your mind slipped into a hazy, pleasure-drunk daze. It was too much - you felt too much.

You tried to speak, to push the word yellow against Satoru’s lips, but he was too lost in you to notice. Too absorbed in the way your body trembled between them, too caught up in his own pleasure to realize you were instinctively trying to move forward - to run - only for Suguru’s grip to turn cruel as he began pulling your hips back in place.

The first wave crashed through you, the lights from the room turning into blurring stars as you did your best to focus on anything but the overwhelming stretch, away from the pleasure being dragged out of you. As your maw went slack, drool spilling past your lips, your body greedily clenched around them both, walls closing in on their thick cocks that seemed to twitch as your cunt sang to their ears. Satoru sucked in a sharp breath beneath you, his grip on your waist faltering as he stilled.

“Fuck - ” a deep groan pushed outwards, his perfect face contorting into pleasure as his white brows furrowed, stuttering a few pleasure-laced breaths before heat flooded inside your body, swarming with your juices. White rings forming around their cocks as both your bodies tensed from the sensation, as your cunt wrung every last drop, sodden walls clenching down mercilessly. Satoru whined, high and breathy, shivering beneath you, but Suguru didn’t stop. Of course, he didn't, instead a soft moan left his lips as he pushed himself deeper, to witness the twitches in Satoru’s body from the overstimulation. 

Satoru had always been an early finisher. His hands however, remained bruising on your skin, fingers dragging down your back, leaving behind stinging scratches as his pale body twitched from the sensitivity as Suguru’s cock dragged against his. You yelped, the sharp sensation blending into the white-hot pleasure building inside you, your moans growing more desperate. You were close - so close.

Satoru pulled you tighter against his chest, cradling you as Suguru’s pace quickened, each thrust sending you spiraling higher, sending your mind spiraling higher as the words yellow to red formed on your lips, words that didn't have the chance to escape. As Satoru's mouth was already there, devouring, consuming, smothering every syllable before it could escape. His tongue swept into your mouth, swallowing every fractured breath and plea. The pleasure crested a blinding, suffocation sensation that sent your body shaking. a keen whine manages to break through your throat, ragged and breathless as tears prickle at your lashes. Hot and stinging. Slipping free in the spaces where neither of them was watching.

Satoru, ever the sweet talker, murmured soft breathless praises into your ear, his voice dripping with adoration. 

“That’s it, pretty,” he cooed, voice hazy as he felt Suguru’s cock twitch against his dragging a breathless, pitiful whine from his lips before continuing, “Just let go. We’ve got you.” 

You don’t remember much after that - after the gasp that tore from your lips, the slick warmth pooling between your thighs, after the small press of something making you feel impossibly fuller. Sleep had dragged you under far too quickly, faster than the aftercare, faster than the quiet murmurs and touches meant to tether you back to them.

When you awoke, the room was silent, save for the muffled hum of the city beyond the floor-to-ceiling windows. Tokyo’s skyline bled into the dim hotel walls, casting soft, shifting reflections across the room. The heat of their bodies had long since vanished, leaving behind only the ghost of them - cologne, sweat, and the unmistakable, sinful scent of last night.

You groggily pushed yourself up, muscles aching, the soreness wrapping itself around your limbs like a cruel embrace - a stark reminder of why you needed to keep your distance. A month should be enough. A month to shake off their hold, to regain some semblance of control. You didn’t envy the poor soul who ended up with them permanently.

Blinking against the remnants of sleep, your gaze landed on the nightstand. A neatly folded note sat there, the ink bold and familiar, the elegant scrawl unmistakably Suguru’s.

Hotel is paid for. I’ll have my assistant schedule our next meeting. Order some food. Please. Satoru turned off your alarm - you looked exhausted.

And beneath it, a final line, one that made something in your chest twist.

I hope this time you’ll consider saying yes.

Of course.

There it was.

Your eyes drifted lower, and sure enough, a small velvet box sat beside the note.

This had to be the fifth - no, the sixth - ring they’d given you.

The first had been simple: a thin silver band pressed into your palm the night Suguru defected. His bloodied hand - blood that wasn’t his - had cupped your cheek as he begged you to come with him. As he whispered that he couldn’t leave without you.

Instead, you had backed away.

You had stayed while they left.

You had chosen the world that they had rejected. A world focused on protecting the weak. A world that the strongest had abandoned.

And somehow, despite everything, you had ended up in this arrangement -  was it lust? Was it the ache of loneliness? Or was it something far along the lines of the intoxicating thrill of being wanted by the strongest?

You weren’t sure. However, you did the same thing you always did.

You left the ring untouched. You never even opened the box to see what elaborate choice they had made this time. It didn’t matter. It never mattered.

This was a fling. Nothing more. At least, that’s what you kept telling yourself. A day later, the Google invite arrived - subtle, inconspicuous, something that wouldn’t raise suspicion among the higher-ups. Two private addresses - never the same location, never the same time. Just a casual meeting of sorts.

You knew better. You knew exactly what would happen if the higher ups caught you with the enemy. And those two knew too - constantly reminding you in soft murmurs and teasing threats that you would be executed.

You tried not to think about it.

So, out of pure spite, you pressed the response button to their invite:

Maybe.

Not like they could contact you, anyway.

But when the end of the month arrived and your period didn’t, the world seemed to fracture beneath you. You counted the days again. And again. You told yourself it was nothing - stress, exhaustion, the toll of constant missions. You tried to believe it.

Still, when the next invitation came, you declined. No explanation. No excuses. Just Declined.

You were busy. Too busy. Missions, training, anything to keep yourself from spiraling. Anything to push the thought - the creeping, gnawing what if - out of your mind.

Anything to push them out of your mind. You didn't need them. This is where you draw the line. Where you hope to never cross paths again.

But that didn’t stop Suguru. He always had his ways of reminding you. Reminding you of his love. The curses came first, creeping from the shadows like nightmarish specters - grotesque things with gnarled, sinewy limbs and rotting flesh that peeled in thick, oozing sheets. Their twisted bodies slithered toward you, spines snapping and limbs jerking with unnatural movements, but it was their mouths - oh, their mouths - that haunted you most.

Petals.

Blood-red roses, blooming in grotesque mockery, spilled from their jagged maws, dripping with saliva and something darker. The scent of decay mixed with the sickly sweet perfume of crushed petals as they gurgled and snarled, teeth flashing between the soft, delicate flowers. Their fingers - long, clawed things  - reached for your flesh, desperate to tear, to consume, to remind you.

Suguru always was a cruel bastard.

But he never sent anything you couldn’t handle. Never anything that could truly harm you - only the most horrifying of his discarded creatures, his unwanted experiments, cast-offs he no longer had use for. They were love letters written in nightmare fuel, messages of devotion carved into the flesh of his creations, each one a whisper of don’t forget me.

And then another month passed.

Another invite.

Another decline. You had things to do, a family-mart to visit. The open bag sat beside you, its contents spilling haphazardly across the sink - water bottles, half-torn hydration drink wrappers, and an obscene number of pregnancy tests. The dim bathroom light flickered above, casting sickly yellow hues over the mess around you. Shadows stretched and twisted against the walls, warping your reflection in the mirror, making it seem as distorted as the thoughts racing through your head.

Your hands trembled violently as you stared down at the scattered tests, their tiny plastic frames stark against the floor. Five. Five identical windows, five glaring verdicts. Five quiet executions of your denial.

Double lines.

Again.

And again.

And again.

Your breath hitched, ragged and uneven, the walls pressing in tighter with every second. Your fingers curled as you grabbed another test, fumbling with frantic, clumsy hands. The packaging crinkled, tearing easily under your shaking grip. Your pulse pounded so loud, so deafening, that you barely heard the sob clawing its way out of your throat.

They have to be defective.

They had to be. Each and every single one of them.

Your vision blurred, hot tears streaking down your face as you fought to steady your hands. The plastic test felt too light, too fragile in your grip - like it was toying with you, waiting to deliver the final blow, waiting to write your execution for something you should have prevented. You uncapped the pathetic thing. Was it because you bought the cheap ones? You should go back and buy the fancy digital ones. Your mind raced as your stomach began twisting, breath began stuttering. The air felt thick, suffocating, heavy with the scent of cheap drugstore plastic and the artificial sweetness of cherry flavoring clinging to the back of your throat. You forced yourself to sit down, legs weak, heart hammering. One more time. Just one more.

One negative is all you were asking for.

You set the test aside, gaze locking onto the result window as if sheer willpower could bend fate. Seconds stretched into an eternity.

Blank.

Blank.

One line.

Two lines.

A strangled, broken laugh escaped you, the sound barely human. Your fingers curled around a hydration bottle, knuckles white as you wrenched it open, nearly crushing the plastic in your grip. You tipped it back in desperate, greedy gulps, the icy liquid searing its way down your throat - sharp enough to make you gasp, sharp enough to ground you in the reality you wanted so desperately to escape.

The tests stared back at you. You weren’t sure how it happened. Well you know how it happens, but you took precautions. You took your pill every single day. Same time. Same routine. Same - your breath caught in your throat.

Satoru turned off your alarm.

A slow, creeping dread slithered through your veins, colder than anything Suguru had ever sent your way.

You missed a day?

No.

You would’ve noticed.

You should have noticed.

…Right?

But the truth lay there before you, undeniable, etched into every test scattered around you. The parasite growing inside you, feeding off your body - their child. A shudder racked your spine, ice pooling in your veins. Your breath hitched, coming in short, uneven gasps as the weight of reality pressed against your chest like a crushing vice. Trembling fingers drifted to your stomach, ghosting over the bare skin as if the simple touch could ground you, could somehow make this feel less real.

But there was no escaping it.

No rewinding time.

No undoing the impossible.

For the first time in years, you were utterly, hopelessly lost.

Your gaze flickered toward your phone, the dim glow of the screen barely cutting through the suffocating darkness of your apartment. The silence pressed in, thick and smothering, tightening with every shallow breath.

A name.

A person you could call.

Your trembling fingers hovered over Satoru’s contact, the letters blurring through the haze of unshed tears.

Satoru - the one who used to press featherlight kisses against your cheek before missions, grinning like the world couldn’t touch you both. The one who would cup your face between his hands, his breath warm against your lips as he whispered the plan to sneak sweets into the dorms, as if it were some grand conspiracy the two of you shared. Sneak them in before Suguru could roll his eyes and scold you both.

Satoru, who left with Suguru.

Satoru, who had clung to you in one last, desperate embrace, his fingers digging into your uniform, his entire body trembling as he silently, wordlessly begged you to come with them.

Begged you to be under their protection.

But you stayed.

You hesitated. Your fingers twitched away from his name. You knew how it would go - he would answer immediately, voice laced with curiosity, amusement, with the confidence that he could fix whatever was wrong. And he would come for you. No hesitation. No delay.

And then there was Suguru.

Your thumb hovered over his contact, breath shuddering out in uneven gasps.

Suguru, who would let the call ring twice - never once, never three times - just long enough to feign indifference, to uphold the meticulously crafted illusion that he wasn’t waiting for you to reach out. That he wasn’t hoping.

But you knew better. You could already hear the smug smirk in his voice, the lazy amusement when he’d finally answer, when he’d ask if you got his flowers.

Not a chance.

And then - Shoko.

Shoko, who had left with them.

Shoko, who had always been your rock, who made those two make sense.

Shoko is a doctor; she would understand what to do, who to talk to, options to - no you couldn't. You should find another way, you should-

Your stomach dropped. Your fingers jerked away from the screen as if burned, but it was too late. The screen flashed. Your pounding, thundering heart had stopped and sank to the pits of your stomach where your parasite now resides.

You were already calling her.

A sharp inhale rattled through your chest, uneven, choked. A fresh wave of panic crashed over you, drowning you in its suffocating weight. Tears burned at the edges of your vision, hot and relentless, blurring the damning sight of the pregnancy tests littered across the bathroom floor. A tremor wracked your entire body, bile clawing its way up your throat, acidic and revolting, as the cold, inescapable truth settled like lead in your stomach.

This wasn’t just your problem.

This wasn’t something you could pretend didn’t exist.

If you carried this child - their child - the higher-ups would execute you both. No hesitation. No trial. No chance to beg. No hope for leniency.

The dial tone barely rang once before a voice sliced through the suffocating quiet.

"Yo." Shoko’s voice rang light, unbothered. However, in the background, a quiet shuffle. A soft scuffle.

Then a familiar, whining voice. "Lemme listen in - " Satoru. A shiver rolled through you, dread sinking its jagged claws deeper into your chest. They were together.

You couldn’t tell them.

You couldn't tell anyone.

Because, your family - your colleagues, the very people you swore loyalty to - would brand you a disgrace. A traitor. A whore who spread her legs for the enemy.

Because, the higher-ups would carve your execution date into stone.

Because -

"I might not let you go this time." Suguru’s voice slithered through your mind, smooth as silk, suffocating as a noose. Your throat constricted, something raw and primal clawing at your chest, your heart pounding so violently it hurt. Your grip on the phone was white-knuckled, shaking so hard you thought you might drop it.

And all you could say to Shoko was -

"Wrong number."

Before hanging up. Before glancing at the string of texts filtering through with Shoko's name attached to them. Texts you assumed weren't from Shoko. Your fingers pressed Block on the contact after seeing the last one. "I miss you" before tears spilled your eyes once more.

You weren’t sure what to do.

Who to speak to.

Who was safe.

Who wasn’t.

Your vision swam, the weight of it all crashing down like an tide, dragging you under.

Why did you stay?

Why did you return to their arms?

And why did a small part of you think it would be easier to just go to them.